<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>添加界面</title>
</head>
<body>
<h1>添加用户</h1>
<form method="post" action="/add_user">
    <input type="text" name="user" placeholder="请输入用户名">
    <input type="password" name="pwd" placeholder="请输入密码">
    <input type="text" name="mobile-num" placeholder="请输入手机号">
    <input type="submit" value="点我提交">
</form>
</body>
</html>